1. GIT ("personne pourrie" en argot britannique) End of CVS at Cern CMSSW code will be hosted on github.com Users free to choose GIT/svn and the hosting site for their code My choice : host my code at Cern with GIT – personnal preference to use a server from a lab – possibility to have a restricted access

2. Create a GIT repository @ Cern go to https://cernforge.cern.ch/cernforge/ to request a repositoryhttps://cernforge.cern.ch/cernforge/ info needed : – repository name – egroup name (can be changed later, but I don’t know how) – initial quota (default is 5MB, max 500MB) egroup : – used usually for mailing lists – used here to restrict usage of repositery – best is probably to create a new one and add the other code users to it. (do this step before asking for the rep.) https://e-groups.cern.ch https://espace.cern.ch/e-groups-help/Users%20Guide/Overview.aspx

3. CVS2GIT Recipe to move your code from CVS to GIT with all its history http://cms-sw.github.io/cmssw/usercode- faq.htmlhttp://cms-sw.github.io/cmssw/usercode- faq.html First part of the recipe (cvs2git) worked for me with CMSSW_5_3_11 on lxplus6 (slc6) – > create 2 local files containing the cvs code history Second part of the recipe had to be adapted (import everything to git) Tags will not be converted. But in GIT each commit is considered as a global tag.

4. Import the code into GIT rep. Recipe : git clone https://:@git.cern.ch/kerberos/MY_REP cd MY_REP cat../git-blob.dat../git-dump.dat | git fast-import git config http.postBuffer 524288000 git push -u origin master Now everything is sent to GIT. You can check it here : https://git.cern.ch/web/ https://git.cern.ch/web/ But your local directory MY_REP is still empty !! (Remove it and) redo git clone https:….MY_REP. Now everything is fine use files created by cvs2git and send the code to GIT checkout the GIT rep.